Board Thread:General Discussion/@comment-31398341-20170409101440/@comment-27535813-20170822111542

In most cases, when you use Draco Meteor and kill the opposing pokemon, the most likely(not always true) move an opponent will make is to switch into something that can check your Draco Meteor user, so it's not true that Draco Meteor will "ruin good opportunities" after using it, when there is a lack of such an existing opportunity in the first place.

Choice specs, Dragonium Z and certain users also would want to run Draco Meteor if they have it as they benefit it from it(type coverage, base power, wallbreak), especially as to how it has the best base power out of all special Dragon-type moves.

Examples of such Pokemon and/or sets: Scarf Latias/Latios, Specs/Dragonium Z Dragalge, Specs Goodra, and even a Life Orb Noivern would prefer Draco Meteor than Dragon Pulse, in order to make use of much power as possible when it comes to dealing damage with its decent special attack stat of 97.

Other rare cases can be mixed sets that focus more on investing into the attack stat, and would require a strong special move to cover what is otherwise the uninvested special attack stat in order to break pass physical walls that otherwise would be known as your traditional checks.

Although in the end, if you prefer consistency you can always choose Dragon Pulse, which is okay-ish.